The four princes of the Kingdom of Granzreich are aiming to become the next king. Under the guidance of the royal tutor Heine Wittgenstein, while overcoming various obstacles and sometimes hesitating, they grow little by little.
Appearing before them are twin princes from the Kingdom of Romano. Even though these princes look cute on the surface, they are actually extremely sadistic...! Towards such an unprecedented crisis, Heine and the four princes perform "educational guidance"!?
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Leonhard von Grannzreich
MAIN
Daisuke Hirose
Japanese
Licht von Grannzreich
MAIN
Shouta Aoi
Japanese
Eugene Alexandruwisch Romano
MAIN
Shougo Sakamoto
Japanese
Heine Wittgenstein
MAIN
Keisuke Ueda
Japanese
Ivan Alexandruwisch Romano
MAIN
Shouhei Hashimoto
Japanese
Kai von Grannzreich
MAIN
Yuuya Asato
Japanese
Bruno von Grannzreich
MAIN
Yuuto Adachi
Japanese
Ernst Rosenberg
SUPPORTING
Takuya Eguchi
Japanese
Ludwig
SUPPORTING
Daisuke Namikawa
Japanese
Victor von Grannzreich
SUPPORTING
Toshiyuki Morikawa
Japanese
Maximilian
SUPPORTING
Shinnosuke Tachibana
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